CN212789573U

CN212789573U - Adjustable dumbbell

Info

Publication number: CN212789573U
Application number: CN202021678825.6U
Authority: CN
Inventors: 翁振宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-03-26
Anticipated expiration: 2030-08-13
Also published as: US20220047908A1; JP3233515U; US11642563B2

Abstract

The utility model discloses an adjustable dumbbell, including the base, the holding rod is connected in the multiunit dumbbell piece subassembly of holding rod both sides, dumbbell piece subassembly is including can following holding rod pivoted rotating member, and the adaptor is located between rotating member and the adaptor, the locating part of being connected with the adaptor spline fit, and the balancing weight, multiunit dumbbell piece subassembly's adaptor passes through the connecting block and links to each other, the locating part is equipped with to the pressure muscle towards rotating member one side, and it is equipped with the arch towards adaptor one side, it is formed with the jack to correspond protruding position on the adaptor, elastic connection between locating part and the adaptor, when the rotating member rotates, it with support the pressure muscle and offset drive locating part translation for the arch stretches into or breaks away from the jack, realizes the connection or the separation of locating part and adaptor. The utility model discloses the connection or the separation operation of balancing weight are simple, laborsaving, and the locking stable in structure is effective, and overall structure is firm, and the safety in utilization performance is high.

Description

Adjustable dumbbell

Technical Field

The utility model belongs to the apparatus field for the physical training especially relates to an adjustable dumbbell.

Background

In order to adapt dumbbells to different groups of users, dumbbells with adjustable weight are provided, and a balancing weight placed on a base is arranged on a holding rod according to requirements. The disassembly and assembly operation of the adjustable dumbbell clump weight in the market at present is relatively complicated.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a dumbbell with simple disassembly and assembly operation and stable structure.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an adjustable dumbbell, includes the base, and the holding rod is connected in the multiunit dumbbell piece subassembly of holding rod both sides, the dumbbell piece subassembly is including can following the rotating member of holding rod pivoted, and the adaptor is located between rotating member and the adaptor, ends the locating part that the cooperation was connected with the adaptor, and the balancing weight, the adaptor of multiunit dumbbell piece subassembly passes through the connecting block and links to each other, the locating part is equipped with to the pressure muscle towards rotating member one side, and it is equipped with the arch towards adaptor one side, it is formed with the jack to correspond protruding position on the adaptor, elastic connection between locating part and the adaptor, when the rotating member rotates, its and the counterbalance drive locating part translation of pressing the muscle for the arch stretches into or breaks away from the jack, realizes the connection or the separation of locating part and adaptor.

The utility model can select and connect different number of dumbbell piece assemblies according to the requirement, is flexible to use, and can adapt to users with different requirements; the connection or separation of a plurality of groups of dumbbell piece assemblies can be realized through the rotation of the holding rod, the operation is convenient, the connection structure of the dumbbell piece assemblies and the holding rod is stable and effective, the dumbbell piece assemblies and the holding rod cannot be separated easily, and the safety performance is high.

Furthermore, the pressing ribs on the limiting parts of the plurality of groups of dumbbell piece assemblies are different in circumferential length and gradually shorten from the central position close to the holding rod to two sides.

Furthermore, the number of the dumbbell piece assemblies is four, and when the holding rod rotates for a circle in the circumferential direction, the balancing weights of the dumbbell piece assemblies are connected with the adaptor. Reasonable in design rotates a week and all dumbbell piece subassemblies all connect or separate, accords with the use habit.

Furthermore, a positioning column is arranged on one side, facing the limiting part, of the adapter, an elastic part is sleeved on the positioning column, a positioning hole is formed in the limiting part corresponding to the position of the positioning column, the positioning column penetrates through the positioning hole and two ends of the elastic part to abut against the adapter and the limiting part respectively, and elastic connection between the limiting part and the adapter is achieved. The locating part and the adaptor elastic connection make the locating part automatically keep away from the adaptor when the balancing weight needs to be separated, and the operation is convenient.

Furthermore, symmetrical concave grooves are formed in one side, facing the limiting part, of the rotating part, a group of driving convex parts are formed between every two adjacent concave grooves, and the end parts of the abutting pressing ribs form inclined planes for the driving convex parts to abut and slide. The design of inclined plane makes the drive convex part can slide to the rib side of support smoothly, and the operation is more laborsaving.

The locking mechanism comprises a fixed piece, a movable piece and a locking piece, wherein the movable piece can rotate along with the holding rod, a plurality of through holes are formed in the movable piece along the circumferential direction, at least one group of elastic balls are arranged on the fixed piece, and when the movable piece and the fixed piece rotate relatively, part of the elastic balls can fall into the through holes; the edge of the moving part forms a plurality of convex teeth arranged at intervals, the through holes and the convex teeth are alternately distributed, and when the locking mechanism is separated from the base, the locking piece is moved to be clamped between the connected convex teeth to prevent the moving part from rotating. The locking mechanism can ensure that the plurality of groups of dumbbell piece assemblies are loosened and slipped when in use, and the safety performance is higher.

Further, the number of the through holes is ten; the pressing ribs on the dumbbell piece assembly far away from the center of the holding rod are two arc convex ribs which are symmetrically arranged and have a central angle of 36 degrees.

Furthermore, a clamping groove for the protrusion to extend into is formed on the balancing weight corresponding to the position of the jack.

Furthermore, the balancing weight includes the body that has first U type breach, and the thin wall portion that extends formation from first U type breach, thin wall portion has second U type breach, the connecting block transversely stretches into between the second U type breach of a plurality of balancing weights, the adaptor vertically stretches into first U type breach. The first U-shaped notch limits axial translation of the adapter, so that the overall structure is more stable.

Furthermore, the connecting block is fixedly connected with the adaptor of the plurality of groups of dumbbell piece assemblies, and one end of the connecting block is connected with the fixing piece.

The utility model has the advantages that: the connection or the separation of balancing weight easy operation, laborsaving, the locking stable in structure is effective, and overall structure is firm, and the safety in utilization performance is high.

Drawings

Fig. 1 is a perspective view of the storage state of the present invention.

Fig. 2 is a plan view of the storage state of the present invention.

Fig. 3 is a sectional view of the storage state of the present invention.

Fig. 4 is an exploded view of the first embodiment of the present invention.

Fig. 5 is an enlarged view of a structure in fig. 4.

Fig. 6 is an exploded view of the second embodiment of the present invention.

Fig. 7 is an enlarged view of the structure at B in fig. 6.

Fig. 8 is a schematic view of a part of the structure of the locking mechanism of the present invention.

Fig. 9 is a schematic view of a partial structure of the locking mechanism of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

As shown in fig. 1-9, an adjustable dumbbell comprises a base 1, a holding rod 2 and a plurality of groups of dumbbell sheet assemblies 3 connected to two sides of the holding rod 2, wherein when the holding rod 2 is rotated, the number of the dumbbell sheet assemblies 3 connected with the holding rod 2 can be adjusted.

Dumbbell piece subassembly 3 includes and is connected, can be along with the rotatory piece 31 of holding rod 2 synchronous rotation with holding rod 2 stall cooperation, adaptor 32, is located the locating part 33 that is connected with adaptor 32 stall cooperation between rotatory piece 31 and the adaptor 32, and balancing weight 4. As shown in fig. 5 and 7, a pressing rib 331 is disposed on one side of the limiting member 33 facing the rotating member 31, a protrusion 332 is disposed on one side of the limiting member facing the adaptor 32, a receptacle 321 is formed on the adaptor 32 corresponding to the protrusion 332, and the shape and size of the receptacle 321 are adapted to the shape and size of the protrusion 332.

The limiting member 33 and the adapter member 32 are elastically connected, specifically, a positioning column 322 is vertically disposed on one side of the adapter member 32 facing the limiting member 33, an elastic member (not shown in the figure) is sleeved on the positioning column 322, a positioning hole 333 is disposed on the limiting member 33 corresponding to the positioning column 322, the positioning column 322 can pass through the positioning hole 333, at this time, one end of the elastic member abuts against the adapter member 32, and the other end of the elastic member abuts against the limiting member 33, so that the limiting member 33 and the adapter member 32 are elastically connected, and the two are in rotation stopping fit.

When the external force is applied to rotate the rotating member 31, in this embodiment, when the external force is applied to rotate the holding rod 2, the rotating member 31 rotates synchronously, and the rotating member 31 abuts against the pressing rib 331 to drive the limiting member 33 to move horizontally along the holding rod 2, so that the protrusion 332 extends into the insertion hole 321 or is separated from the insertion hole 321, and the connection or separation of the limiting member 33 and the adaptor 32 is realized.

As shown in fig. 7, symmetrical concave grooves 311 are formed on one side of the rotating member 31 facing the limiting member 33, and a set of driving protrusions 312 are formed between adjacent concave grooves 311, and the driving protrusions 312 can abut against the pressing ribs 331 to realize the translation of the limiting member 33. In order to facilitate the driving protrusion 312 to rotate and abut against the side surface of the pressing rib 331, an inclined surface 334 is formed at the end of the pressing rib 331, so that the driving protrusion 312 can slide along the inclined surface 334 until rotating to the side surface of the pressing rib 331.

The circumferential lengths of the pressing ribs 331 on the limiting members 33 of the dumbbell plate assemblies 3 are different, specifically, the circumferential length of the pressing ribs 331 closer to the center of the holding rod 2 is larger, and the circumferential lengths of the pressing ribs 331 on the dumbbell plate assemblies 3 far away from the center of the holding rod 2 are gradually shortened. In this embodiment, the pressing ribs 331 are symmetrically arranged in pairs, the outermost pressing ribs 331 are two arc-shaped ribs with a central angle of 36 degrees, the dumbbell piece assemblies 3 are four in number, and the pressing ribs 331 can be a pair of arc-shaped ribs with a central angle of 72 degrees, arc-shaped ribs with a central angle of 144 degrees, arc-shaped ribs with a central angle of 216 degrees and arc-shaped ribs with a central angle of 288 degrees in the direction close to the center of the holding rod 2, and the angles of the specific central angles are not limited. Therefore, when the holding rod 2 rotates one circle in the circumferential direction, the four groups of dumbbell plate assemblies 3 can be connected with the balancing weight 4.

In order to prevent the adapters 32 from rotating circumferentially, the adapters 32 of the multiple dumbbell disc assemblies 3 are fixedly connected by the connecting block 5.

The utility model discloses a dumbbell still includes locking mechanical system 6, as shown in fig. 8, 9, it is including the mounting 61 of cover on holding rod 2, can be along with holding rod 2 synchronous pivoted moving part 62, and locking piece 63, a plurality of through holes 621 have been seted up along circumference on the moving part 62, be equipped with at least a set of elastic ball 611 on the mounting 61, when moving part 62 and mounting 61 rotate relatively, elastic ball 611's part can fall in through hole 621 to it is spacing to realize the stopping cooperation of mounting 61 and moving part 62. In this embodiment, one end of the elastic ball 611 is connected with a spring, the spring extends into the fixing member 61, and the number of the elastic balls 611 is two. The number of the through holes 621 is ten, so that the through holes 621 and the elastic balls 611 are matched to be divided into five movable paths, one of the five movable paths forms an initial state, and the other four movable paths are respectively used for connecting four balancing weights 4.

The edge of the movable member 62 is bent to form convex teeth 622, gaps are formed between adjacent convex teeth 622, and the through holes 621 and the convex teeth 622 are alternately distributed, that is, the through holes 621 and the gaps are arranged oppositely.

The locking member 63 is movably connected to the fixed member 61, and in an initial state, that is, when the dumbbell sheet assembly 3 is placed on the base 1, the locking member 63 is pushed upward by the unlocking block 11 on the base 1, so that the locking member 63 is not clamped in the gap between the convex teeth 622, and the movable member 62 can freely rotate; when the locking mechanism 6, the dumbbell disc assembly 3, is disengaged from the base 1, the locking member 63 moves downwardly to engage the gap between the teeth 622, preventing the movable member 62 from rotating and thus preventing the grip 2 from rotating circumferentially.

When the movable member 62 rotates circumferentially until the elastic balls 611 fall into the through holes 621, just one group of dumbbell sheet assemblies 3 is connected with the counterweight block 4, and a hand feeling prompt is also given to a user.

The position of the counterweight 4 corresponding to the insertion hole 321 forms a slot 41 for the protrusion 332 to penetrate through the adaptor 32 and then extend into, and the size and the shape of the slot 41 are matched with those of the protrusion 332.

A gap is formed at the top of each balancing weight 4, each gap comprises a body 42 with a first U-shaped gap 421 and a thin-wall part 43 formed by extending from the first U-shaped gap 421, each thin-wall part 43 is provided with a second U-shaped gap 431, so that each connecting block 5 extends into the space between the second U-shaped gaps 431 of the balancing weights 4, each connecting block 5 is fixedly connected with the corresponding adaptor 32 of the plurality of groups of dumbbell sheet assemblies 3, one end of each connecting block 5 is fixedly connected with the corresponding fixing part 61, and the other end of each connecting block is fixedly connected with the corresponding limiting disc 7 on the outer side of each dumbbell; the adaptor 32 extends into the first U-shaped notch 421, and the first U-shaped notch 421 achieves a limiting effect on the adaptor 32.

The working process of the utility model is that, a plurality of groups of dumbbell piece assemblies 3 are placed on the base 1, the holding rod 2 is rotated, so that the balancing weights 4 of a group of dumbbell piece assemblies 3 close to the center of the holding rod 2 are connected on the holding rod 2, specifically, the rotating piece 31 rotates to make the driving convex part 312 slide to the side of the abutting rib 331 along the inclined plane 334, so that the limiting piece 33 translates towards the direction far away from the rotating piece 31, and the protrusion 332 on the limiting piece 33 extends into the jack 321 of the adapter 32 and then passes through the jack 321 to fall into the clamping groove 41 of the balancing weight 4, thereby realizing the connection of the balancing weights 4; and continuing to rotate the holding rod 2, so that the balancing weights 4 of the second group of holding rod dumbbell piece assemblies 3 are connected to the holding rod 2, and different numbers of balancing weights 4 are connected as required, or all the balancing weights 4 are connected to the holding rod 2.

When the weight block 4 needs to be detached, only the holding rod 2 needs to be rotated reversely, at this time, under the action of the elastic member, the limiting member 33 can move towards the direction away from the adaptor 32, and the protrusion 332 is disengaged from the insertion hole 321.

The above detailed description is provided for illustrative purposes, and is not intended to limit the present invention, and any modifications and variations of the present invention are within the spirit and scope of the following claims.

Claims

1. The utility model provides an adjustable dumbbell, includes base (1), holding rod (2), connects in multiunit dumbbell piece subassembly (3) of holding rod (2) both sides, its characterized in that: the dumbbell piece assembly (3) comprises a rotating piece (31) capable of rotating along with the holding rod (2), an adapter piece (32), a limiting piece (33) and a balancing weight (4), wherein the limiting piece (33) is located between the rotating piece (31) and the adapter piece (32) and is connected with the adapter piece (32) in a rotation stopping matching mode, the adapter pieces (32) of the multiple groups of dumbbell piece assemblies (3) are connected through a connecting block (5), a pressing rib (331) is arranged on one side, facing the rotating piece (31), of the limiting piece (33), a protrusion (332) is arranged on one side, facing the adapter piece (32), of the limiting piece (33), a jack (321) is formed in the position, corresponding to the protrusion (332), of the adapter piece (32), the limiting piece (33) is elastically connected with the adapter piece (32), when the rotating piece (31) rotates, the rotating piece abuts against the pressing rib (331) to drive the limiting piece (33) to move horizontally, and the, the connection or the separation of the limiting part (33) and the adapter part (32) is realized.

2. The adjustable dumbbell of claim 1, wherein: the circumferential lengths of the pressing ribs (331) on the limiting pieces (33) of the multi-group dumbbell piece assemblies (3) are different, and the pressing ribs gradually shorten from the central position close to the holding rod (2) to two sides.

3. The adjustable dumbbell of claim 1, wherein: the number of the dumbbell piece assemblies (3) is four, and when the holding rod (2) rotates for a circle in the circumferential direction, the balancing weights (4) of the dumbbell piece assemblies (3) are connected with the adaptor (32).

4. The adjustable dumbbell of claim 1, wherein: adaptor (32) are equipped with reference column (322) towards locating part (33) one side, and the cover is equipped with the elastic component on this reference column (322), locating hole (333) have been seted up to corresponding reference column (322) position on locating part (33), reference column (322) pass locating hole (333), the elastic component both ends respectively with adaptor (32) and locating part (33) offset, realize the elastic connection of locating part (33) and adaptor (32).

5. The adjustable dumbbell of claim 1, wherein: symmetrical concave grooves (311) are formed in one side, facing the limiting piece (33), of the rotating piece (31), a group of driving convex portions (312) are formed between every two adjacent concave grooves (311), and inclined surfaces (334) for the driving convex portions (312) to abut and slide are formed at the end portions of the abutting and pressing ribs (331).

6. The adjustable dumbbell of claim 1, wherein: the locking mechanism (6) comprises a fixed piece (61), a movable piece (62) capable of rotating along with the holding rod (2) and a locking piece (63), wherein a plurality of through holes (621) are formed in the movable piece (62) along the circumferential direction, at least one group of elastic balls (611) are arranged on the fixed piece (61), and when the movable piece (62) and the fixed piece (61) rotate relatively, the elastic balls (611) can fall into the through holes (621); the edge of the movable piece (62) forms a plurality of convex teeth (622) arranged at intervals, the through holes (621) and the convex teeth (622) are alternately distributed, and when the locking mechanism (6) is separated from the base (1), the locking piece (63) moves to be clamped between the connected convex teeth (622) to prevent the movable piece (62) from rotating.

7. The adjustable dumbbell of claim 6, wherein: the number of the through holes (621) is ten; the pressing ribs (331) are two arc-shaped convex ribs which are symmetrically arranged and have a central angle of 36 degrees, and the pressing ribs (331) are dumbbell piece assemblies (3) which are far away from the center of the holding rod (2).

8. The adjustable dumbbell of claim 1, wherein: and a clamping groove (41) for the protrusion (332) to extend into is formed on the balancing weight (4) corresponding to the position of the jack (321).

9. The adjustable dumbbell of claim 6, wherein: the balancing weight (4) comprises a body (42) with a first U-shaped notch (421) and a thin wall portion (43) formed by extending from the first U-shaped notch (421), the thin wall portion (43) is provided with a second U-shaped notch (431), the connecting block (5) transversely extends into the space between the second U-shaped notches (431) of the balancing weights (4), and the adaptor (32) longitudinally extends into the first U-shaped notch (421).

10. The adjustable dumbbell of claim 9, wherein: the connecting block (5) is fixedly connected with the adaptor (32) of the plurality of groups of dumbbell sheet assemblies (3), and one end of the connecting block (5) is connected with the fixing piece (61).